mbrooke
Batteries Included
- Location
- United States
- Occupation
- Technician
Just because a short circuit does not trip a breaker on its instantaneous magnetic trip curve does not mean it will never shut off a second latter on its thermal trip curve, and this video actually proves that. The guy says the fault never draws more then 20amps, but that is a lie because the regular breaker tripped a few round after. Being how quick it did trip especially with a second between cuts shows that the fault current is well over 20amps, more like 100amps. Also notice the 3 wire extension cord used in the test. A GFCI break would have done the EXACT same thing since the EGC gets involved. The explanation of sparks dissipating electrons into space is also incorrect. Starting 10:20 here, a regular breaker vs an AFCI receptacle:
https://www.youtube.com/watch?v=dENKTpgZtEk
https://www.youtube.com/watch?v=dENKTpgZtEk